Single stage venous catheter

Details Single stage venous catheter Single stage venous catheter

1990-08-09

1991-08-20

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Material introduced into and removed from body through...

604169, 604264, 604280, A61M 300

Patent

active

050410849

ABSTRACT:
A single stage catheter which is used in open heart surgery to by-pass blood from the heart to a life support machine. The single stage catheter has a spiral lead flute for insertion into the inferior vena cava of the heart and a root section with multiple openings to be positioned in the right atrium of the heart. The flutes of the spiral lead to small quadrant openings in the end of the root section which also has long and short axial slot openings leading to the interior of the catheter. An obturator is designed to block the long and short axial slots during insertion to allow flow only through the quadrant openings to the interior of the obturator.

REFERENCES:
patent: 3630207 (1971-12-01), Kahn et al.
patent: 4129129 (1978-12-01), Amrine
patent: 4596548 (1986-06-01), DeVries et al.
patent: 4787882 (1988-11-01), Claren
patent: 4863441 (1989-09-01), Lindsay et al.

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